Global patent index - EP 1035750 A2

EP 1035750 A2 2000-09-13 - Signal transmission system

Title (en)

Signal transmission system

Title (de)

Signalübertragungssystem

Title (fr)

Système de transmission de signal

Publication

EP 1035750 A2 (EN)

Application

EP 00300931 A

Priority

GB 9905729 A

Abstract (en)

In a signal transmission system having a number of routing nodes and in which traffic is carried by a number of optical carriers, an additional supervisory optical carrier carries node identifiers. A large transmission network contains many nodes, with several alternative routes between them, and a routing fault can be difficult to detect. The use of node identifiers on an optical carrier to identify those nodes at which it has been re-routed assists in the rapid identification of system errors. <IMAGE>

IPC 1-7 (main, further and additional classification)

H04Q 11/00

IPC 8 full level (invention and additional information)

H04B 10/08 (2006.01); H04B 10/20 (2006.01); H04Q 11/00 (2006.01)

CPC (invention and additional information)

H04Q 11/0062 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1035750 A2 20000913; AU 1943100 A 20000914; CN 1267974 A 20000927; GB 2347821 A 20000913; GB 2347821 B 20010131; GB 9905729 D0 19990505; HK 1027695 A1 20010727; JP 2000295290 A 20001020; NO 20001257 A 20000913; NO 20001257 D0 20000310; RU 2000106110 A 20020127

INPADOC legal status

2004-03-24 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030902

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-09-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI